cannot connect two node when you zoomed out.

1- click on zoom out button , until get the smallest canvas 2- put an start event on canvas 3- click on start event , to appear the Quick draw tools, and select task ( repeat this about 6 times) 4- put just a select a task from shape repository ,and put it on canvas 5-select a flow from shape repository and put it on canvas 6-try to connect 6'th to the 7'th task. 7- it does'nt work!!!!!